couple days ago after some serious cleaning, I applied sonax gummi pflege* to my door rubbers. I don't know why, but I've thought It's good for cold weather. unfortunately my doors started to create creaky sounds like leather jackets on very low speeds, speed bumps and bad road. Even I'm cleaning the rubbers everytime with wet towel and dry towel I've never been able to get rid of from that crazy sounds. my car is only in 15k kms.

I'm thinking to apply silicone lubricant spray. What do you recommend me to do?

In the past i have used a degreaser on all rubbers and anything that comes into contact with them, then left to air dry this cured my squeeky seals. I have also read that swissvax rubber feed is good but expensive if it doesn't cure it for you. I was told once to be careful when applying polish, wax, sealant not to get any on the rubbers as this can cause some squeeking i dont know how accurate that info was though.